Unknown problem in Prboom 2.2.2

I just completed a wad and when the player exits, I get this damn error message after Prboom crashes:

Z_Free: Freed pointer without ZONEID


can anyone shine some light on this subject?

Deathman said:

I just completed a wad and when the player exits, I get this damn error message after Prboom crashes:

Z_Free: Freed pointer without ZONEID


can anyone shine some light on this subject?

This means that there was some memory corruption on the heap. Unfortunately more precise information isn't available. It can have happened anywhere.

nevermind, I figured out why it crashed. Apparently, Prboom doesn't like running in resolutions higher than 640 x 480. Strange enough, everything is now fine once I switched back to that resolution.